Orion-system Water Source Heat Pump X Module Instrukcja Użytkownika Pobierz pdf (Strona 18)

WSHP-X Module

Technical Guide

Sequence of Operation

Stand-Alone Input Commands

Compressor On/Off

A 24 volt signal to Binary Inputs #1-4 initiates each Compressor’s On

function. The source for this signal would typically come from Y1 to

Y4 calls from the thermostat.

Heat Enable On/Off

A 24 volt signal on this input indicates the unit is in the Heating Mode.

Typically, the source for this signal is the “O” call from the thermo-

stat.

Water Proof of Flow System On/Off

A 24 volt signal to Binary Inputs #6-7 indicates Water Proof of Flow

for each system.

Suction Pressure Analog Inputs

Sensors from Analog Inputs #1-4 correlate with the Suction Pressure of

each Compressor (250 PSI).

Leaving Water Temperature Thermistor Inputs

T1 correlates with Compressors A1 & A2 (RLY1 and RLY2). T2 cor-

relates with Compressors B1 & B2 (RLY3 and RLY4).

Input Commands (VCM-X WSHP or SA

Connection)

NOTE: When the term “ON” is used, it means there is either 24

VAC on the appropriate Binary Input or a call-to-run

signal is being received from the VCM-X WSHP Series

or SA Series Controller. When the term “OFF” is used,

it means there is either 0 VAC on the appropriate Binary

Input or the call-to-run signal from the VCM-X WSHP

or SA has been removed.

Compressor On/Off

Instead of a physical input signaling the Compressor On/Off function,

the VCM-X WSHP Series Controller or SA Series Controller commu-

nications drives the Compressor On/Off function.

Heat Enable On/Off

As with the Compressor On/Off function, the VCM-X WSHP Series or

SA Series Controller communicates to the Module that it is in Heat Mode.

Table 4: Factory-Set Default Setpoints - Glycol

Glycol Default Setpoints

Description

R22

Glycol

R410-A

Glycol

R410-A

Glycol

R410-A

10%

Glycol

R410-A

15%

Glycol

R410-A

20%

Glycol

R410-A

25%

Glycol

R410-A

30%

Glycol

R410-A

35%

Glycol

R410-A

40%

Glycol

UNSAFE

SUCTION

20 PSIG 40 PSIG 40 PSIG 40 PSIG 40 PSIG 40 PSIG 40 PSIG 40 PSIG 40 PSIG 40 PSIG

LOW SUCTION

HEAT MODE

57 PSIG 100 PSIG 93 PSIG 87 PSIG 82 PSIG 75 PSIG 65 PSIG 58 PSIG 49 PSIG 45 PSIG

LOW SUCTION

COOL MODE

57 PSIG 87 PSIG 85 PSIG 85 PSIG 85 PSIG 85 PSIG 85 PSIG 85 PSIG 85 PSIG 85 PSIG

LOW LEAVING

WATER TEMP

37ºF 37ºF 34ºF 30ºF 27ºF 20ºF 15ºF 9ºF 2ºF 0ºF

Revised: 6/13/13

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 31 32

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